1. a granular igneous rock consisting of a mix of light and dark minerals, the former being calcic plagioclase feldspars, and the latter orthorhombic pyroxenes.

Origin of norite

From the Norwegian word norit, dating back to 1875–80. See Norway, -ite1
Related formsnor·it·ic [naw-rit-ik] /nɔˈrɪt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for norite

Historical Examples of norite

British Dictionary definitions for norite


  1. a variety of gabbro composed mainly of hypersthene and labradorite feldspar

Word Origin for norite

C19: from Norwegian norit, from Norge Norway + -it -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

norite in Science


  1. See gabbro.
  2. A coarse-grained igneous rock, very similar to gabbro but containing orthopyroxene instead of clinopyroxene.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.